3737225

Information

• Patent Grant
• 3737225

• References
• Source

• Patent Number

  3,737,225

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1973
  51 years ago

• CPC

  • H04N1/036 - for optical reproduction
  • G03B15/00 - Special procedures for taking photographs Apparatus therefor
  • G03F5/04 - changing the screen effect
  • H04N1/4058 - with details for producing a halftone screen at an oblique angle

• US Classifications

  • 355 - Photocopying